The Business Case For Buying a CNC Machine
Like a good chef, a good machinist does a lot by feel and experience. These things can’t be learned in a few hours or even days – it takes years. When it comes to CNC machines, sometimes the sum equals more than its parts – but many times the parts generate more than its sum.
How Piston Rings Affect Horsepower
The rings seal the pistons to prevent air and oil from being drawn past the rings into the combustion chamber during the intake stroke. During the compression stroke, the rings make sure the air/fuel stays in the combustion chamber and is fully compressed before it is ignited. During the power stroke, the rings prevent pressure
Selecting The Right High Performance Rocker Arms
The rocker arms in a pushrod engine serve two purposes. The rockers serve as fulcrums to redirect the upward motion of the lifters and pushrods into downward motion to open the valves. The lift ratio of the rockers also serves to multiply the amount of valve lift generated by the cam lobes. Stock rocker arms
Performance Seminar To Put Power In Your Hands
This seminar, sponsored by the University of Northwestern Ohio and supported by Engine Builder magazine will teach you to find additional output from high performance and competition engines by dealing with the concepts involved in a way unique to David Vizard. In a word, says the presenter, it’s about combinations. So what qualifies David Vizard
PBM To Host Camshaft Design and Development Seminar at PRI
Noted speakers Steve Tanzi of Erson Cams and Darin Morgan of Profiler Performance will moderate an open discussion about cylinder head airflow and camshaft performance. Morgan and Tanzi will focus the discussion around how cylinder heads are affected by camshaft lift and duration and other factors that influence today’s racing heads and cams. Darin Morgan
Heavy-Duty Diesel: Big Opportunity, Big Challenges
One of the most sought-after status symbols in America is a pickup truck with a Cummins, Duramax or Powerstroke engine. The expectation continues that diesel automotive engines will soon find their way in larger numbers to our shores. A rebounding economy should help get trucks moving again and recapture some lost maintenance dollars. First, what
Diesel Performance: Camshafts, Lifters and Valvetrain
Diesel performance is nothing new. What is new is the level of interest in diesels for all kinds of racing; everything from traditional truck and tractor pulling to drag racing, even sports car and endurance racing. Diesel engines are a different type of animal when compared to gasoline engines. While both use the same four-stroke
Stroker Strategies for Higher Horsepower
Such strategies are already very popular with those building small block and big block Chevys as well as small block Fords. In the main, it is a cost effective way to deliver what most customers deem as power – that is more low speed torque. Generating extra cubes via a stroker crank is a good
It
The above statement is bold, you may think. Are you thinking that it doesn’t applyto your business? You may think you’re doing okay. Yet my statementapplies to everyone – from a one-man shop to a shop with 100 employeesor more – because if you don’t do it, your competitor will! The most recent Machine Shop
Cleaning Up In The Shop
In fact, it can be very difficult to make an accurate diagnosis of what’s wrong with an engine until it’s clean. You may be able to recognize some failed parts, you can often see large cracks or obvious damage, but you’re really only assuming you know what caused a failure if you can’t see for
A Closer Look at BBC Bracket Racing Cylinder Heads
However, it proved to be just the opposite – sportsman racers loved it and it allowed local drag racing to thrive and grow. Back in its infancy, I covered weekly bracket racing in Southern California at the now defunct Irwindale and Orange County International Raceways. The action was hot and heavy with full fields of
Not Those Jeeps Again! The Facts About 4.0L Cylinder Heads
Back in the April 2003 issue of Engine Builder information was provided about the proliferation that occurred on the engine blocksof 4.0L Jeeps starting in 1996 and continuing though the present.Sound familiar? Well, you may remember the reference made to Popeye andhis "Jeep" friends. The 4.0L came on the scene in 1987 and is still
The More Things Change…
One of the things we editorial-types like best is hearing from you, our readers. Obviously, we can’t talk with each one of you in person during the week, so it’s always a treat when someone comes up to me at a trade show or business convention and lets me know they appreciate receiving Engine Builder
CNC?Head Porting & Machining Centers
The fact that CNC machines have come down in price over the years, coupled with less complicated interfacing systems means that today they can be used by nearly anyone. You don’t have to relearn everything. You don’t have to take endless courses on how to make a tool change. Today’s machines are sophisticated and savvy
Diesel Crankshaft Basics
The crankshaft turns this linear motion into a rotating motion that provides power to move a vehicle forward, operate generators or otherwise give measurable activity. Whether in a gasoline or diesel-powered engine, the crankshaft is a key component. With diesels, the crank is typically thought of as bigger, heavier and harder to get in the
A Closer Look at Today
The location of the wrist pins must match the stroke of the crankshaft, the length of the connecting rods and the deck height of the block. The compression ratio needs to be right for the application, and the configuration of the piston dome and valve reliefs have to be compatible with the combustion chambers in
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A bold statement, you may think. Are you thinking that it doesn’t apply to your business? You may think you’re doing okay. Yet my statement applies to everyone – from a one-man shop to a shop with 100 employees or more – because if you don’t do it, your competitor will! The most recent Machine
Street Performance Cylinder Heads
Where I grew up in Connecticut wasn’t the hotbed of street racing like Woodward was in Detroit, but we had the Berlin Turnpike, River Road in Middletown, plus a few local small-town hotspots. It was during this period that I got my first education about the importance of cylinder heads. A local rich kid got
Scoping Out the Sport Compact Market
At first it was known as the Import Tuner Market which later morphed into what is currently known as Sport Compact. However, the market could be changing again and may soon be called something else. Last year, the Specialty Equipment Market Association (SEMA) changed the name of its Sport Compact Council to Street Performance Council
Crankshafts and Bearings for Street Performance and Racing
Most engine builders have strong opinions and brand preferences when it comes to choosing a crankshaft and bearing combination for a performance engine application. Their preferences (and prejudices) are usually based on years of experience, both good and bad. Many subscribe to the philosophy that “if it isn’t broke, don’t fix it!” Consequently, if they